This doesn't work very well for AppHarbify as by default on AppHarbor, the connection string lives in an AppSetting called SQLSERVER_CONNECTION_STRING.

AppHarbify.EF makes it really simple to override this convention when it detects the AppSetting, leaving it alone when it does not, so that with a single line of code you can support running on AppHarbor with no setup.

First install the packageInstall-Package AppHarbify.EF
Then add the following line of code somewhere in your app startup process.

AppHarbify.EF.ConnectionFactory.Enable();

You can also enable MultipleActiveResultSets by simply passing in true, which will append MultipleActiveResultSets=True; to the connection string provided by AppHarbor.